Yup. Exactly. 12 hours+ a week seems like a lot when working on your startup, until you realize the benefit of feeling better all the time, relieving stress, and not having high blood pressure when you're 30.

Okay. If that is what it takes, count me out. That is an insane amount of time to spend doing something that we as a species have worked so hard to overcome the need for.

That may be extreme for most people, however ten minutes of calisthenics everyday and eating right can bring people two-thirds of the way there.